/* Shared brand treatment for the app, lock screen, and public guide. */
:root {
  --grid-line: rgba(112, 78, 188, .19);
  --grid-glow: rgba(150, 115, 223, .09);
  --glass-surface: rgba(255, 254, 254, .84);
  --glass-chrome: rgba(247, 245, 255, .88);
  --glass-highlight: rgba(239, 236, 255, .84);
}

body {
  isolation: isolate;
  background: linear-gradient(160deg, #fcfbff, #f4f1fa);
}

:root[data-theme="dark"] {
  --grid-line: rgba(169, 137, 250, .24);
  --grid-glow: rgba(126, 83, 220, .12);
  --glass-surface: rgba(25, 27, 41, .84);
  --glass-chrome: rgba(16, 17, 26, .88);
  --glass-highlight: rgba(37, 34, 61, .84);
}

:root[data-theme="dark"] body {
  background: linear-gradient(160deg, #13121e, #0e101a);
}

/* Keep both fades stationary while the texture drifts along the plane. */
.synthwave-backdrop {
  --grid-column: 40px;
  --grid-row: 24px;
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 28%, var(--grid-glow) 64%, transparent);
  -webkit-mask-image: linear-gradient(transparent 24%, #000 55%, #000 78%, transparent 100%);
  mask-image: linear-gradient(transparent 24%, #000 55%, #000 78%, transparent 100%);
}

.synthwave-grid {
  position: absolute;
  width: 240%;
  height: 150%;
  left: -70%;
  top: 36%;
  transform-origin: center top;
  /* Extra rows balance the stronger perspective toward the foreground. */
  transform: perspective(440px) rotateX(62deg);
  -webkit-mask-image: linear-gradient(transparent, #000 24%, #000 70%, transparent);
  mask-image: linear-gradient(transparent, #000 24%, #000 70%, transparent);
  overflow: hidden;
}

.synthwave-grid::before {
  content: "";
  position: absolute;
  inset: calc(-1 * var(--grid-row)) 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: var(--grid-column) var(--grid-row);
}

/* Moving exactly one row makes the loop seamless without repainting
   background-position on each frame. No animation runs without the script. */
@media (prefers-reduced-motion: no-preference) {
  :root[data-grid-motion] .synthwave-grid::before {
    animation: synthwave-drift 8s linear infinite;
  }

  :root[data-grid-motion="paused"] .synthwave-grid::before {
    animation-play-state: paused;
  }
}

@keyframes synthwave-drift {
  from { transform: translateY(0); }
  to { transform: translateY(var(--grid-row)); }
}

.brand-mark,
:root[data-theme="dark"] .brand-mark {
  flex-shrink: 0;
  background: transparent;
  border-radius: 28%;
  box-shadow: 0 5px 15px rgba(78, 49, 148, .16);
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
}

/* Translucent fills keep labels, charts, and controls fully opaque.
   Preserve the distinct fills on colored information and status panels. */
:root[data-theme] .card:not(.how-flow):not(.how-summary):not(.readiness):not(.overview-pending-approval),
:root[data-theme] .lock-view-card,
:root[data-theme] .oauth-callback-form {
  background: var(--glass-surface);
}

:root[data-theme] .readiness,
:root[data-theme] .overview-pending-approval {
  background: linear-gradient(130deg, var(--glass-surface), var(--glass-highlight));
}

@media (max-width: 850px) {
  :root[data-theme] .sidebar {
    background: var(--glass-chrome);
  }

  :root[data-theme] .sidebar nav {
    background: var(--glass-surface);
  }
}

@media (max-width: 560px) {
  :root[data-theme] .topbar {
    background: var(--glass-chrome);
  }
}

@media (prefers-reduced-transparency: reduce) {
  :root,
  :root[data-theme] {
    --glass-surface: var(--paper);
    --glass-chrome: var(--cream);
    --glass-highlight: var(--paper);
  }
}

@media (max-width: 560px) {
  .synthwave-backdrop {
    --grid-column: 28px;
    --grid-row: 17px;
  }
}